Proposed design principle demonstrates magnetic undulator effectiveness in free-electron lasers, suggesting new radiation techniques.
We proposes a design principle for a magnetic undulator using a magnetic film material—a long strip with a sinusoidal profile. The magnetic field of such a structure is calculated in three dimensions. The amplitude curves of the magnetic field strength are presented as a function of the profile period. The radiation emitted by a relativistic electron passing through the undulator’s magnetic field is estimated.
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Piatakov et al. (2026) studied this question.
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